Wood-turning machine.



3 Sheets-Sheet Patented Aug. l5, 1 899.- G. W. PRINGLE & W. BRDDIE.

WOOD TURNING MACHINE.

(Application filed Mar. 6,. 1899.)

(No Model.)

No. 630,928. Patented Aug. I5, |899.

' G. W. PRINGLE & W. BRODIE.

WOOD TURNING MACHINE.

(Application filed Mar. 6, 1899.)

3 Sheets-Sheet 2,

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'1 l; WN 'ilA |r Il Patented Aug. I5, |899. G. W. PRINGLE & W. BHDDIE.

WOOD TURNING MACHINE.

(Application filed Mar. 6, 1899,)

3 Sheets-Sheet 3.

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UNITED STATES PATENT OFFICE.

GEORGE XV. PRINGLE AND WILLIAM BRODIE, OF CHICAGO, ILLINOIS.

wooo-TURNlNc MACHINE.

SPECIFICATION forming part of Letters Patent No. 630,928, dated August 15, 1899.

Application filed March 6, 1899. Serial No. 707,989. (No model.)

To all whom it may concern.-

Beit known that we, GEORGE W. PRINGLE and WILLIAM BRODIE, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Vood- Turning Machines, of which the following is a specification.

The object of this invention is the production of an improved automatic machine for turning small articles, and While its embodiment here shown is particularly adapted to the formation of collar-buttons it is manifest that other articles of a similar nature may be produced by mechanism which does not depart from the spirit of this invention.

In the accompanying drawings, Figure l is a side elevation of this wood-turnin g machine, showing a portion of the frame removed. Fig. 2 is an elevation of the opposite side of said machine, also showing part of the frame removed. Fig. 3 is a plan view of the mechanism on dotted line :c zr, Fig. 1. Eig. 4 is a vertical central section of the carrier-wheel, the driving-drum, and the cutter-head, being the respective means for carrying and for rotating the dowel-sticks and for forming them into buttons. Figs. 5, 6, and 5' are fragmentary views indicating the form of the cuttingknives ground for the formation of collarbuttons.

Like letters of reference indicate corresponding parts throughout the several views.

In the construction of this machine we provide a supporting-frame A of any suitable form, wherein A is thebed, and A2 a vertical column extending upward from a point near the center of said bed. A counter-shaft B, rotatably mounted in the journal-bearings B' on the supporting-frame A, carries the tight and loose pulleys B2 and B2, respectively, by which motion is imparted to said countershaft. The counter-shaft also carries the drive-pulleys B4 and B5 and the worm B6, all fixed with relation to theirsupporting-shaft B.

A vertical shaft C is rotatably mounted in bearings in the supporting-frame A, adjacent to the counter-shaft B, and carries thc wormwheel C4 for engaging the worm BG. The vertical shaft C also carries the pulleys C2 and C3. At the opposite side of the supportingframe a second vertical shaft D is rotatably mounted in bearings D and at its upper end is provided with the pulley D2, driven by the belt D2, which runs upon the face of the pulley D2 and the pulley C2, by means of which belt D3 and the shaft C power is transmitted from the counter-shaft B to the shaft D. At the lower end of the vertical shaft D and just above its lower bearing D is provided the drivingdrum D4, rigidly affixed to said shaft D. A pheripheral knife edge D5 projects from the face of said driving-drum, which knife-edge is held in position by the clamping-ring DG.

A carrier-wheel E is rotatably mounted upon the hub of the driving-drum D4 and has affixed upon its upwardly-extending tubular stem E the supporting-racks E2, provided with openings or notches E3 in their peripheries. The carrier-wheel E is provided'fwith a series of vertical tubes E4, arranged about its periphery. These tubes E4 lie adjacent to the peripheral faces of the driving-drum D4 and are cut away at their inner sides.

The Wood or other material to be formed into collar-buttons is supplied in the form of dowel-sticks E5, and these dowel-sticks are intended to be placed within the vertical tubes E4, extending upward through the open ings E3 in the supporting-racks E2. The periphery of the carrier-wheel E is formed in two grooves E6 and E7, the former for the reception of a driving-band E8, of steel, leather, or other flexible material, and the latter for the receptionof an idler-band E9, of like material. y The vertical tubes E4 are cut away at their outer sides to permit the band E8 to ride upon the dowel-sticks E5, and as the driving-band E8 is driven vat a considerable rate of speed a rotatory motion is imparted to the dowel-sticks,\vhich latter are held by the tension of the driving-band EE5 against the peripheral face of the driving-drum D4. The idler-band Efis not positively driven, but by reason of its frictional contact with the dowelsticks E5 is caused to travel in the same direction and at substantially the same rate of speed as the driving-band ES. The drivingdrum D4 and driving-band ES move in opposite directions, the former at a slightly-higher rate of speed than the latter, whereby the doWel-sticks are caused to travel in an orbit following the periphery of the driving-drum IOO D4, thereby imparting a rotary motion to the carrier-wheel E. The driving-band E8 passes over the drive-pulley F, affixed to the shaft F', which shaft is rotatably mounted in the swinging yoke F2. The shaft E" is also provided with the pulley F3, carrying the belt F4, which passes over the pulley F3 from the pulley C3 on the shaft O, from which shaft it transmits power to said shaft F. A weight F5 tends to swing the yoke E2 outward, giving tension to the drivingband E8. Setscrews F6 are provided in the yoke for-adjusting the vertical position of the shaft E.

The idler-pulley G has a rotatable bearing upon the sliding carriage G'. This idler-pulley carries the idler-band E, and a weight GrV2 is provided to give tension to said idler-band. The idler-band surrounds almost all of the periphery of the driving-drum not surrounded bythe driving-band, leaving a space not covered by either for the insertion and removal of dowel-sticks. To accomplish this purpose, the general direction of the idler-band E9 is substantially at right angles to that of the driving-band E8.

A vertical cutter-shaft H has bearings H in the ad j usting-carriage H2. This adjustingcarriage, mounted in the frame A upon two pairs of ways, which pairs extend at right angles to each other, by means of the screws H3, is capable of either a vertical or a lateral adjustment. The cutter-shaft H bears at its upper yend the cutter-head H4, rigidly affixed to said shaft and provided with the cutterknives H5, I-I, and' H7, respectively, the cutti 11g-teeth of which cutter-knives are so formed as to provide for the proper conformation of the collar-button. The cutter-head H4. lies just below and within the carrier-wheel E, and its knives engage the dowel-sticks projecting below the carrier-wheel. A belt Hs transmits power from the drive-pulley B4 on the counter-shaft B to the cutter-shaft H.

The saw-arbor I is rotatably mounted in bearings Il in the adjustable carriage I2 similar in its manner of adjustment to the adjustable carriage H2.

I3 are screws for adjusting the carriage I2.

I4. is a saw mounted at the upper end of the 'saw-arbor I and so adjusted as to engage with and cut 0E the'formed collar-button on the lower end of the dowel-sticks after the same has passed the cutter-head H4. Power is transmitted from the counter-shaft B to the sawa-rbor I by a belt I5 passing over the pulley B5.

A gage J, made adjustable by the verticallyelongated openings J', is arranged to limit the downward movement of the dowel-sticks in the carrier-wheel E when said dowel-sticks travel out of engagement with both the driving-band E8 and the idler-band E9. This space is also utilized for inserting dowel-sticks in places left vacant by the dropping out of those which have been consumed.

In operation motion is communicated to the driving-band E8, the driving-drum D4, the cutter-head H4, and the saw I4, and dowelsticks are inserted in their places in the carrier-wheel E. The driving-band E8 traveling in the direction indicated by the arrow in Fig. 3 and the driving-drum in the opposite direction at a slightly-greater speed of rotation rapidly rotate the dowel-sticks in the carrier-wheel E and cause said sticks and said wheel to move slowly in the direction taken by the driving-d rum. This movement of the dowel-sticks brings them one after another into contact with the rapidly-revolving cutter-knives, which form a collar-button at the lower end of each one of said dowel-sticks, and the continued travel of the carrier-wheel brings the dowel-sticks into contact with the saw I4, which cuts 0E the formed collar-button at the lower end of the dowel-stick. The dowelsticks are retained from vertical displacement within the carrier-wheel by reason of the pressure of the driving-band E? and the indenting peripheral knife-edge D5, also bythe idlerband E9, until the carrier-,wheel has been rotated to such position that the dowel-sticks are not engaged by either of said bands. At this point the dowel-sticks drop downward through the tubes E4 in the carrier-wheel until the lower end of the descending stick rests upon the gage J, upon which it rides until the dowel-stick is again engaged by the driving-band Es and a new indentation made in the stick by the peripheral knife-edge D5. lVhen the stick has been consumed to a length too short to be engaged by the idler-band E9, it will be dropped from the carrier-wheel E after the driving-band E8 ceases to engage the dowel-stick and before the adjustable gage J is encountered.

We claim as our inventionl. In a wood-turning machine, in combina tion, a supporting frame; a cutter.- head; means comprising two unrecessed surfaces for frictionally holding between them the work to be operated upon; and means for positively driving said surfaces in opposite directions, whereby said work is rotated between said surfaces by the difference in direction o f their travel.

2. In a wood-turning machine, in combination, a supporting frame; a cutter-head; means comprising two unrecessed surfaces for frictionally holding between them the work to be operated upon; and means for positively dri ving said surfaces in opposite directions at roo IIO

different rates of speed, whereby said work is y axially rotated and fed forward in the direction of movement ofthe surface traveling at the higher rate of speed.

3. In a wood-turning machine, in combination, a supportingframe; a cutterhead; means comprising twounrecessed surfaces for frictionally holding between them the work to be operated upon, one of which surfaces has a yielding movement relative to the other of said surfaces; and means for. positively driving said surfaces in opposite directions and at dilferent rates of speed, whereby said work is axially rotated, and fed forward in the direction of movement of the surface traveling at the higher rate of speed.

4. In a wood-turning machine, in combination, a supporting-frame; acutter-head; a carrier-wheel; a driving-drum having a regular peripheral surface; a driving-band, the surfaces of which drum and band frictionally engage the work to be operated upon; and means for moving said engaging surfaces in opposite directions and at different rates of speed, whereby said work is axially rotated, and fed forward in the direction of movement of the surface traveling at the higher rate of speed.

5. In a wood-turning machine, in combination,asupportingt`rame; a cutter-head; acarrier-wheelhavinga series of openings therein, for holding the work to he operated upon; a driving-drum havinga regular peripheral surface,and a driving-band,the surfaces of which drum and band frictionally engage said work; and means for moving said engaging surfaces in opposite directions and at dierent rates of speed, whereby said work is axially rotated, and fed forward in the direction ofgmovement of the surface traveling at the higher rate of speed.

G. In a wood-turning machine, in combination,asupportingframe; acutter-head; acarrier-wheel rotatably mounted in ihe supporting-frame having a series of cylindrical openings for loosely supporting the work to be operated upon; a driving-drum havinga regular peripheral surface, and a driving-band adapted to lie in contact with said work, the contactingsurfaces of which drum and band frictionally engage said work; and means for moving said contacting surfaces in opposite directions and at different rates of speed, whereby said work is axially rotated, and fed forward in the direction of movement of the surface traveling at the higher rate of speed.

7. In a wood-turning machine, in combination,asupportingframe; acutter-head; acarrier-wheel having a series of cylindrical openings near its periphery for holding the work to be operated upon; a driving-drum for engaging the work located within the carrierwheel; a driving-band for lying in contact with said work, located outside of the periphery of the carrier-wheel; a tightening device for said band; an idler-band for contacting with and supporting certain of said work at a point in the carrier-wheel where such work is not engaged by the driving-band; a tightening device for said idler-band; and means for imparting rotatory motion to the drivingdrum and the driving-band so that their surfacesin contact with the said work shall move in contrary directions and at different rates of speed.

8. In a wood-turning machine, in combination7 a supporting-frame; a cutter-head; a saw; a carrier-wheel; a driving-drum; a driving-band; means for regulating the tension of the driving-band; an idler-band for contacting with and supporting certain of said work at a point in the carrier-wheel where such work is not engaged by the driving-band; means for regulating the tension of the idlerband; and means for rotating the drivingdrum and moving the driving-band in opposite directions and at different rates of speed.

9. In a wood-turning machine, in combination, a supporting-frame; a cutter-head; a carrier-wheel having a series of cylindrical openings near its periphery for holding the work to be operated upon, and having two peripheral grooves, which grooves communicate with said cylindrical openings; a driving-band for one of said grooves; an idlerband for the other of said grooves, for contacting with and supporting certain of said work at a point in the carrier-Wheel where such work is not engaged by the driving-band; independent means for regulating the tension of said bands; a driving-drum for engaging the work located within the carrierwheel; and means for rotating the drivingdrum and moving the driving-band in opposite directions and at different rates of speed.

lO. In a wood-tu rning machine, in combination, a supporting-frame; a cutter-head; a saw; a carrier-wheel having a series of cylindrical openings near its periphery for holding the work to be operated upon, and having two peripheral grooves, which grooves communicate with said cylindrical openings; a drivin g-band for one of said grooves; means for regulating the tension of said band; an

idler-band for the other of said grooves, for contacting with and supporting certain of said work at a point in the carrier-wheel where such work is not engaged by the driving-band; means for regulating the tension of the idlerband; a gage adjacent to the carrier-wheel; means for adjusting the position of said gage; and means for adjusting the position of the cutter-head and of the saw.

ll. In awood-turning machine, in combination, a supporting-frame; a cutter-head; a carrier-wheel having a series of cylindrical openings near its periphery, for holding the IOO IOS

IIO

work to be operated upon; and having two peripheral grooves, which grooves communicate with said cylindrical openings; a driving-band for one of said grooves, and an idlerband for the other of said grooves, for contacting with and supporting certain of said work at a point in the carrier-Wheel where such work is not engaged by the driving-band; a weight and a swinging yoke for regulating the tension of the driving-band, and a weight and a pulley for regulating the tension of the idler-band; a driving-drum located within the carrier-wheel, and adapted to engage the work in the carrier-wheel; a peripheral knife-edge for said driving-drum; means for adjusting the position of the driving-drum; a saw; and means for adjusting the position of said saw.

l2. In a wood-turning machine, in combination, a supportingframe; a cutter-head; a carrier-wheel having a series of cylindrical openings near its periphery for holding the work to be operated upon; a tubular stem for said Carrier-Wheel a supporting-rack affixed to said tubular stem; said carrier-wheel having two peripheral grooves; a drivingband for one of said grooves; a weightand a swinging yoke for regulating the tension of said driving-band; an idler-band for the other of said peripheral grooves, for Contactin g with and supportingeertain of said Work ata point in the carrier-Wheel Where snoh Work is not engaged by the driving-band; a Weight and a pulley for regulating the Tension of said idler-band 5 a driving-drum located within the carrier-wheel, and adapted to engage the work in the carrier-wheel; a peripheral knifeedge for said driving-d rum; a clampingring I5 for holdin g said knife-edge in position; an adjustable gage located near the carrier-wheel; a saw; means for rotating the saw and the cutter-head; and independent means foratijusting the position of the driving-drum and zo of the saw.

GEORGE W. PRINGLE. WILLIAM BRODIE. Witnesses:

L. L. MILLER, GEO. L. CHINDAHL. 

